Get rid of the ad-hoc memory allocator for vm_map_entries, in lieu of
a simple, clean zone type allocator. This new allocator will also be used for machine dependent pmap PV entries.
This commit is contained in:
John Dyson
parent
5efb75076f
commit
3075778b63
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=27899
@ -35,7 +35,7 @@
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* SUCH DAMAGE.
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*
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* from: @(#)machdep.c 7.4 (Berkeley) 6/3/91
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* $Id: machdep.c,v 1.252 1997/06/27 18:29:55 fsmp Exp $
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* $Id: machdep.c,v 1.253 1997/07/20 08:37:19 bde Exp $
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*/
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#include "apm.h"
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@ -341,6 +341,7 @@ cpu_startup(dummy)
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(nbuf*BKVASIZE), TRUE);
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pager_map = kmem_suballoc(clean_map, &pager_sva, &pager_eva,
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(nswbuf*MAXPHYS) + pager_map_size, TRUE);
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pager_map->system_map = 1;
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exec_map = kmem_suballoc(kernel_map, &minaddr, &maxaddr,
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(16*ARG_MAX), TRUE);
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u_map = kmem_suballoc(kernel_map, &minaddr, &maxaddr,
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@ -359,6 +360,7 @@ cpu_startup(dummy)
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bzero(mclrefcnt, mb_map_size / MCLBYTES);
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mb_map = kmem_suballoc(kmem_map, (vm_offset_t *)&mbutl, &maxaddr,
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mb_map_size, FALSE);
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mb_map->system_map = 1;
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}
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/*
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@ -416,3 +416,4 @@ vm/vm_pager.c standard
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vm/vm_swap.c standard
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vm/vm_unix.c standard
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vm/vnode_pager.c standard
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vm/vm_zone.c standard
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@ -35,7 +35,7 @@
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* SUCH DAMAGE.
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*
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* from: @(#)machdep.c 7.4 (Berkeley) 6/3/91
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* $Id: machdep.c,v 1.252 1997/06/27 18:29:55 fsmp Exp $
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* $Id: machdep.c,v 1.253 1997/07/20 08:37:19 bde Exp $
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*/
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#include "apm.h"
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@ -341,6 +341,7 @@ cpu_startup(dummy)
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(nbuf*BKVASIZE), TRUE);
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pager_map = kmem_suballoc(clean_map, &pager_sva, &pager_eva,
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(nswbuf*MAXPHYS) + pager_map_size, TRUE);
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pager_map->system_map = 1;
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exec_map = kmem_suballoc(kernel_map, &minaddr, &maxaddr,
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(16*ARG_MAX), TRUE);
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u_map = kmem_suballoc(kernel_map, &minaddr, &maxaddr,
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@ -359,6 +360,7 @@ cpu_startup(dummy)
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bzero(mclrefcnt, mb_map_size / MCLBYTES);
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mb_map = kmem_suballoc(kmem_map, (vm_offset_t *)&mbutl, &maxaddr,
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mb_map_size, FALSE);
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mb_map->system_map = 1;
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}
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/*
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@ -39,7 +39,7 @@
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* SUCH DAMAGE.
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*
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* @(#)init_main.c 8.9 (Berkeley) 1/21/94
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* $Id: init_main.c,v 1.65 1997/06/22 16:04:09 peter Exp $
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* $Id: init_main.c,v 1.66 1997/07/10 11:44:42 davidn Exp $
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*/
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#include "opt_rlimit.h"
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@ -318,6 +318,11 @@ proc0_init(dummy)
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*/
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sleepinit();
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/*
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* additional VM structures
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*/
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vm_init2();
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/*
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* Create process 0 (the swapper).
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*/
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@ -31,7 +31,7 @@
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* SUCH DAMAGE.
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*
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* @(#)kern_malloc.c 8.3 (Berkeley) 1/4/94
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* $Id: kern_malloc.c,v 1.26 1997/02/22 09:39:07 peter Exp $
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* $Id: kern_malloc.c,v 1.27 1997/06/24 09:41:00 davidg Exp $
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*/
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#include <sys/param.h>
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@ -41,11 +41,14 @@
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#include <sys/malloc.h>
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#include <sys/mbuf.h>
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#include <sys/vmmeter.h>
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#include <sys/lock.h>
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#include <vm/vm.h>
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#include <vm/vm_param.h>
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#include <vm/vm_kern.h>
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#include <vm/vm_extern.h>
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#include <vm/pmap.h>
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#include <vm/vm_map.h>
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static void kmeminit __P((void *));
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SYSINIT(kmem, SI_SUB_KMEM, SI_ORDER_FIRST, kmeminit, NULL)
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@ -402,6 +405,7 @@ kmeminit(dummy)
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kmem_map = kmem_suballoc(kernel_map, (vm_offset_t *)&kmembase,
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(vm_offset_t *)&kmemlimit, (vm_size_t)(npg * PAGE_SIZE),
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FALSE);
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kmem_map->system_map = 1;
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#ifdef KMEMSTATS
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for (indx = 0; indx < MINBUCKET + 16; indx++) {
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if (1 << indx >= PAGE_SIZE)
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@ -16,7 +16,7 @@
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* 4. Modifications may be freely made to this file if the above conditions
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* are met.
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*
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* $Id: sys_pipe.c,v 1.27 1997/03/24 11:52:26 bde Exp $
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* $Id: sys_pipe.c,v 1.28 1997/04/09 16:53:39 bde Exp $
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*/
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/*
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@ -80,6 +80,7 @@
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#include <vm/pmap.h>
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#include <vm/vm_map.h>
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#include <vm/vm_page.h>
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#include <vm/vm_zone.h>
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/*
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* Use this define if you want to disable *fancy* VM things. Expect an
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@ -144,6 +145,8 @@ static void pipe_clone_write_buffer __P((struct pipe *wpipe));
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#endif
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static void pipespace __P((struct pipe *cpipe));
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vm_zone_t pipe_zone;
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/*
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* The pipe system call for the DTYPE_PIPE type of pipes
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*/
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@ -162,10 +165,20 @@ pipe(p, uap, retval)
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struct pipe *rpipe, *wpipe;
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int fd, error;
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if (pipe_zone == NULL)
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pipe_zone = zinit("PIPE", sizeof (struct pipe), 0,
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ZONE_WAIT, 4);
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rpipe = zalloc( pipe_zone);
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/*
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rpipe = malloc( sizeof (*rpipe), M_TEMP, M_WAITOK);
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*/
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pipeinit(rpipe);
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rpipe->pipe_state |= PIPE_DIRECTOK;
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/*
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wpipe = malloc( sizeof (*wpipe), M_TEMP, M_WAITOK);
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*/
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wpipe = zalloc( pipe_zone);
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pipeinit(wpipe);
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wpipe->pipe_state |= PIPE_DIRECTOK;
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@ -1099,6 +1112,9 @@ pipeclose(cpipe)
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cpipe->pipe_buffer.size + PAGE_SIZE);
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}
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#endif
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zfree(pipe_zone, cpipe);
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/*
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free(cpipe, M_TEMP);
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*/
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}
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}
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@ -31,7 +31,7 @@
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* SUCH DAMAGE.
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*
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* @(#)malloc.h 8.5 (Berkeley) 5/3/95
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* $Id: malloc.h,v 1.20 1997/02/22 09:45:32 peter Exp $
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* $Id: malloc.h,v 1.21 1997/07/06 02:40:35 dyson Exp $
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*/
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#ifndef _SYS_MALLOC_H_
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@ -135,7 +135,8 @@
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#define M_GEOM_MISC 88 /* geometry misc */
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#define M_VFSCONF 89 /* vfsconf structure */
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#define M_AIO 90 /* AIO structure(s) */
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#define M_LAST 91 /* Must be last type + 1 */
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#define M_ZONE 91 /* Zone header */
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#define M_LAST 92 /* Must be last type + 1 */
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#define INITKMEMNAMES { \
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"free", /* 0 M_FREE */ \
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@ -226,6 +227,7 @@
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"GEOM misc", /* 88 M_GEOM_MISC */ \
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"VFS conf", /* 89 M_VFSCONF */ \
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"AIO", /* 90 M_AIO */ \
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"ZONE", /* 91 M_ZONE */ \
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}
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struct kmemstats {
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@ -61,7 +61,7 @@
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* any improvements or extensions that they make and grant Carnegie the
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* rights to redistribute these changes.
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*
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* $Id: vm_kern.c,v 1.37 1997/06/22 15:47:11 peter Exp $
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* $Id: vm_kern.c,v 1.38 1997/08/02 14:33:26 bde Exp $
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*/
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/*
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@ -443,6 +443,7 @@ kmem_init(start, end)
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vm_map_lock(m);
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/* N.B.: cannot use kgdb to debug, starting with this assignment ... */
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kernel_map = m;
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kernel_map->system_map = 1;
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(void) vm_map_insert(m, NULL, (vm_offset_t) 0,
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VM_MIN_KERNEL_ADDRESS, start, VM_PROT_ALL, VM_PROT_ALL, 0);
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/* ... and ending with the completion of the above `insert' */
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165
sys/vm/vm_map.c
165
sys/vm/vm_map.c
@ -61,7 +61,7 @@
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* any improvements or extensions that they make and grant Carnegie the
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* rights to redistribute these changes.
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*
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* $Id: vm_map.c,v 1.78 1997/06/23 21:51:03 tegge Exp $
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* $Id: vm_map.c,v 1.79 1997/07/27 04:44:12 dyson Exp $
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*/
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/*
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@ -89,6 +89,7 @@
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#include <vm/vm_pager.h>
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#include <vm/vm_extern.h>
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#include <vm/default_pager.h>
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#include <vm/vm_zone.h>
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/*
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* Virtual memory maps provide for the mapping, protection,
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@ -148,20 +149,17 @@
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* maps and requires map entries.
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*/
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vm_offset_t kentry_data;
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vm_size_t kentry_data_size;
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static vm_map_entry_t kentry_free;
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static vm_map_t kmap_free;
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extern char kstack[];
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extern int inmprotect;
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static int kentry_count;
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static vm_offset_t mapvm_start, mapvm, mapvmmax;
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static int mapvmpgcnt;
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static struct vm_map_entry *mappool;
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static int mappoolcnt;
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#define KENTRY_LOW_WATER 128
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static struct vm_zone kmapentzone_store, mapentzone_store, mapzone_store;
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static vm_zone_t mapentzone, kmapentzone, mapzone;
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static struct vm_object kmapentobj, mapentobj, mapobj;
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#define MAP_ENTRY_INIT 128
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struct vm_map_entry map_entry_init[MAX_MAPENT];
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struct vm_map_entry kmap_entry_init[MAX_KMAPENT];
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struct vm_map map_init[MAX_KMAP];
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static void _vm_map_clip_end __P((vm_map_t, vm_map_entry_t, vm_offset_t));
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static void _vm_map_clip_start __P((vm_map_t, vm_map_entry_t, vm_offset_t));
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@ -175,33 +173,15 @@ static void vm_map_copy_entry __P((vm_map_t, vm_map_t, vm_map_entry_t,
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void
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vm_map_startup()
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{
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register int i;
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register vm_map_entry_t mep;
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vm_map_t mp;
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/*
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* Static map structures for allocation before initialization of
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* kernel map or kmem map. vm_map_create knows how to deal with them.
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*/
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kmap_free = mp = (vm_map_t) kentry_data;
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i = MAX_KMAP;
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while (--i > 0) {
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mp->header.next = (vm_map_entry_t) (mp + 1);
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mp++;
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}
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mp++->header.next = NULL;
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/*
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* Form a free list of statically allocated kernel map entries with
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* the rest.
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*/
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kentry_free = mep = (vm_map_entry_t) mp;
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kentry_count = i = (kentry_data_size - MAX_KMAP * sizeof *mp) / sizeof *mep;
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while (--i > 0) {
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mep->next = mep + 1;
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mep++;
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}
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mep->next = NULL;
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mapzone = &mapzone_store;
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_zbootinit(mapzone, "MAP", sizeof (struct vm_map),
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map_init, MAX_KMAP);
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kmapentzone = &kmapentzone_store;
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_zbootinit(kmapentzone, "KMAP ENTRY", sizeof (struct vm_map_entry),
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kmap_entry_init, MAX_KMAPENT);
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mapentzone = &mapentzone_store;
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_zbootinit(mapentzone, "MAP ENTRY", sizeof (struct vm_map_entry),
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map_entry_init, MAX_MAPENT);
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}
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/*
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@ -216,14 +196,6 @@ vmspace_alloc(min, max, pageable)
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{
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register struct vmspace *vm;
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if (mapvmpgcnt == 0 && mapvm == 0) {
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mapvmpgcnt = (cnt.v_page_count * sizeof(struct vm_map_entry) + PAGE_SIZE - 1) / PAGE_SIZE;
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mapvm_start = mapvm = kmem_alloc_pageable(kernel_map,
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mapvmpgcnt * PAGE_SIZE);
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mapvmmax = mapvm_start + mapvmpgcnt * PAGE_SIZE;
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if (!mapvm)
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mapvmpgcnt = 0;
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}
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MALLOC(vm, struct vmspace *, sizeof(struct vmspace), M_VMMAP, M_WAITOK);
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bzero(vm, (caddr_t) &vm->vm_startcopy - (caddr_t) vm);
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vm_map_init(&vm->vm_map, min, max, pageable);
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@ -233,6 +205,16 @@ vmspace_alloc(min, max, pageable)
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return (vm);
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}
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void
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vm_init2(void) {
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_zinit(kmapentzone, &kmapentobj,
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NULL, 0, 4096, ZONE_INTERRUPT, 4);
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_zinit(mapentzone, &mapentobj,
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NULL, 0, 0, ZONE_WAIT, 4);
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_zinit(mapzone, &mapobj,
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NULL, 0, 0, ZONE_WAIT, 4);
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}
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void
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vmspace_free(vm)
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register struct vmspace *vm;
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@ -278,15 +260,7 @@ vm_map_create(pmap, min, max, pageable)
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{
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register vm_map_t result;
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if (kmem_map == NULL) {
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result = kmap_free;
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if (result == NULL)
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panic("vm_map_create: out of maps");
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kmap_free = (vm_map_t) result->header.next;
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} else
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MALLOC(result, vm_map_t, sizeof(struct vm_map),
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M_VMMAP, M_WAITOK);
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result = zalloc(mapzone);
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vm_map_init(result, min, max, pageable);
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result->pmap = pmap;
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return (result);
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@ -308,6 +282,7 @@ vm_map_init(map, min, max, pageable)
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map->size = 0;
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map->ref_count = 1;
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map->is_main_map = TRUE;
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map->system_map = 0;
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map->min_offset = min;
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map->max_offset = max;
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map->entries_pageable = pageable;
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@ -328,20 +303,7 @@ vm_map_entry_dispose(map, entry)
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vm_map_t map;
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vm_map_entry_t entry;
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{
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int s;
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if (map == kernel_map || map == kmem_map ||
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map == mb_map || map == pager_map) {
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s = splvm();
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entry->next = kentry_free;
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kentry_free = entry;
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++kentry_count;
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splx(s);
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} else {
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entry->next = mappool;
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mappool = entry;
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++mappoolcnt;
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}
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zfree((map->system_map || !mapentzone) ? kmapentzone : mapentzone, entry);
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}
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/*
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@ -354,68 +316,7 @@ static vm_map_entry_t
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vm_map_entry_create(map)
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vm_map_t map;
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{
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vm_map_entry_t entry;
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int i;
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int s;
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/*
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* This is a *very* nasty (and sort of incomplete) hack!!!!
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*/
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if (kentry_count < KENTRY_LOW_WATER) {
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s = splvm();
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if (mapvmpgcnt && mapvm) {
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vm_page_t m;
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m = vm_page_alloc(kernel_object,
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OFF_TO_IDX(mapvm - VM_MIN_KERNEL_ADDRESS),
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(map == kmem_map || map == mb_map) ? VM_ALLOC_INTERRUPT : VM_ALLOC_NORMAL);
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if (m) {
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int newentries;
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newentries = (PAGE_SIZE / sizeof(struct vm_map_entry));
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vm_page_wire(m);
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PAGE_WAKEUP(m);
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m->valid = VM_PAGE_BITS_ALL;
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pmap_kenter(mapvm, VM_PAGE_TO_PHYS(m));
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m->flags |= PG_WRITEABLE;
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entry = (vm_map_entry_t) mapvm;
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mapvm += PAGE_SIZE;
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--mapvmpgcnt;
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for (i = 0; i < newentries; i++) {
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vm_map_entry_dispose(kernel_map, entry);
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entry++;
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}
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}
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}
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splx(s);
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}
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if (map == kernel_map || map == kmem_map ||
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map == mb_map || map == pager_map) {
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s = splvm();
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entry = kentry_free;
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if (entry) {
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kentry_free = entry->next;
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--kentry_count;
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} else {
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panic("vm_map_entry_create: out of map entries for kernel");
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}
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splx(s);
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||||
} else {
|
||||
entry = mappool;
|
||||
if (entry) {
|
||||
mappool = entry->next;
|
||||
--mappoolcnt;
|
||||
} else {
|
||||
MALLOC(entry, vm_map_entry_t, sizeof(struct vm_map_entry),
|
||||
M_VMMAPENT, M_WAITOK);
|
||||
}
|
||||
}
|
||||
|
||||
return (entry);
|
||||
return zalloc((map->system_map || !mapentzone) ? kmapentzone : mapentzone);
|
||||
}
|
||||
|
||||
/*
|
||||
@ -496,7 +397,7 @@ vm_map_deallocate(map)
|
||||
|
||||
vm_map_unlock(map);
|
||||
|
||||
FREE(map, M_VMMAP);
|
||||
zfree(mapzone, map);
|
||||
}
|
||||
|
||||
/*
|
||||
|
||||
@ -61,7 +61,7 @@
|
||||
* any improvements or extensions that they make and grant Carnegie the
|
||||
* rights to redistribute these changes.
|
||||
*
|
||||
* $Id: vm_map.h,v 1.25 1997/04/06 02:29:44 dyson Exp $
|
||||
* $Id: vm_map.h,v 1.26 1997/04/07 07:16:06 peter Exp $
|
||||
*/
|
||||
|
||||
/*
|
||||
@ -131,7 +131,8 @@ struct vm_map {
|
||||
struct vm_map_entry header; /* List of entries */
|
||||
int nentries; /* Number of entries */
|
||||
vm_size_t size; /* virtual size */
|
||||
boolean_t is_main_map; /* Am I a main map? */
|
||||
unsigned char is_main_map; /* Am I a main map? */
|
||||
unsigned char system_map; /* Am I a system map? */
|
||||
int ref_count; /* Reference count */
|
||||
struct simplelock ref_lock; /* Lock for ref_count field */
|
||||
vm_map_entry_t hint; /* hint for quick lookups */
|
||||
@ -231,6 +232,7 @@ typedef struct {
|
||||
/* XXX: number of kernel maps and entries to statically allocate */
|
||||
#define MAX_KMAP 10
|
||||
#define MAX_KMAPENT 128
|
||||
#define MAX_MAPENT 128
|
||||
|
||||
/*
|
||||
* Copy-on-write flags for vm_map operations
|
||||
@ -279,6 +281,7 @@ void vm_map_startup __P((void));
|
||||
int vm_map_submap __P((vm_map_t, vm_offset_t, vm_offset_t, vm_map_t));
|
||||
void vm_map_madvise __P((vm_map_t, pmap_t, vm_offset_t, vm_offset_t, int));
|
||||
void vm_map_simplify_entry __P((vm_map_t, vm_map_entry_t));
|
||||
void vm_init2 __P((void));
|
||||
|
||||
#endif
|
||||
#endif /* _VM_MAP_ */
|
||||
|
||||
@ -61,7 +61,7 @@
|
||||
* any improvements or extensions that they make and grant Carnegie the
|
||||
* rights to redistribute these changes.
|
||||
*
|
||||
* $Id: vm_object.c,v 1.93 1997/06/22 03:00:24 dyson Exp $
|
||||
* $Id: vm_object.c,v 1.94 1997/06/22 15:47:16 peter Exp $
|
||||
*/
|
||||
|
||||
/*
|
||||
@ -92,7 +92,6 @@
|
||||
#include <vm/vm_kern.h>
|
||||
#include <vm/vm_extern.h>
|
||||
|
||||
static void _vm_object_allocate __P((objtype_t, vm_size_t, vm_object_t));
|
||||
static void vm_object_qcollapse __P((vm_object_t object));
|
||||
#ifdef not_used
|
||||
static void vm_object_deactivate_pages __P((vm_object_t));
|
||||
@ -142,7 +141,7 @@ static long object_collapses;
|
||||
static long object_bypasses;
|
||||
static int next_index;
|
||||
|
||||
static void
|
||||
void
|
||||
_vm_object_allocate(type, size, object)
|
||||
objtype_t type;
|
||||
vm_size_t size;
|
||||
|
||||
@ -61,7 +61,7 @@
|
||||
* any improvements or extensions that they make and grant Carnegie the
|
||||
* rights to redistribute these changes.
|
||||
*
|
||||
* $Id$
|
||||
* $Id: vm_object.h,v 1.35 1997/02/22 09:48:29 peter Exp $
|
||||
*/
|
||||
|
||||
/*
|
||||
@ -171,6 +171,7 @@ vm_object_pip_wakeup(vm_object_t object)
|
||||
}
|
||||
|
||||
vm_object_t vm_object_allocate __P((objtype_t, vm_size_t));
|
||||
void _vm_object_allocate __P((objtype_t, vm_size_t, vm_object_t));
|
||||
void vm_object_cache_clear __P((void));
|
||||
boolean_t vm_object_coalesce __P((vm_object_t, vm_pindex_t, vm_size_t, vm_size_t));
|
||||
void vm_object_collapse __P((vm_object_t));
|
||||
|
||||
@ -34,7 +34,7 @@
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* from: @(#)vm_page.c 7.4 (Berkeley) 5/7/91
|
||||
* $Id: vm_page.c,v 1.77 1997/03/23 02:44:54 dyson Exp $
|
||||
* $Id: vm_page.c,v 1.78 1997/05/01 14:36:01 dyson Exp $
|
||||
*/
|
||||
|
||||
/*
|
||||
@ -285,28 +285,6 @@ vm_page_startup(starta, enda, vaddr)
|
||||
bucket++;
|
||||
}
|
||||
|
||||
/*
|
||||
* round (or truncate) the addresses to our page size.
|
||||
*/
|
||||
|
||||
/*
|
||||
* Pre-allocate maps and map entries that cannot be dynamically
|
||||
* allocated via malloc(). The maps include the kernel_map and
|
||||
* kmem_map which must be initialized before malloc() will work
|
||||
* (obviously). Also could include pager maps which would be
|
||||
* allocated before kmeminit.
|
||||
*
|
||||
* Allow some kernel map entries... this should be plenty since people
|
||||
* shouldn't be cluttering up the kernel map (they should use their
|
||||
* own maps).
|
||||
*/
|
||||
|
||||
kentry_data_size = MAX_KMAP * sizeof(struct vm_map) +
|
||||
MAX_KMAPENT * sizeof(struct vm_map_entry);
|
||||
kentry_data_size = round_page(kentry_data_size);
|
||||
kentry_data = (vm_offset_t) vaddr;
|
||||
vaddr += kentry_data_size;
|
||||
|
||||
/*
|
||||
* Validate these zone addresses.
|
||||
*/
|
||||
|
||||
Loading…
Reference in New Issue
Block a user